Pentax 645z sample images

Pentax-645z-sample-images
Pentax (or Ricoh Imaging to be precise) published several sample images taken with their new Pentax 645z medium format camera ($8,498.00):

Pentax 645z sample images

Pentax 645z sample images

Pentax 645z sample images

Pentax 645z sample images

Pentax 645z sample images

Pentax 645z sample images

Pentax 645z sample images

Pentax 645z sample images

Pentax 645z sample images

Pentax 645z sample images

Pentax 645z sample images

Pentax 645z sample images
Direct link to flickr.

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  • fjfjjj

    Meh.

    • waterengineer

      I will assume that is to down-resolution to 72 dpi ( or something) for the internet. I will wait for downloadable RAW files before passing judgement. If anyone knows where to download RAW files, please let me know. Thanks.

      • Ken Elliott

        FYI – since your name says “engineer”, I think you’ll be interested to know that “dpi” means nothing for Internet images. There is no “inch”. On physical media like paper – yes. But you can have the same screen resolution (say 1920×1080 pixels) on different size screens. So the display size of a 1000 pixel-wide image will change, depending on the monitor.

      • Ken Elliott

        FYI – since your name says “engineer”, I think you’ll be interested to know that “dpi” means nothing for Internet images. There is no “inch”. On physical media like paper – yes. But you can have the same screen resolution (say 1920×1080 pixels) on different size screens. So the display size of a 1000 pixel-wide image will change, depending on the monitor.

    • TinusVerdino

      The originals are not originals 27mp instead of 50.

      • fjfjjj

        True they are JPEGs, but not all are downsampled. The tree in the snow, which I used for the 100% crop above, was 8256×6192=51Mp.

        • TinusVerdino

          That one is, but with 50mp you get a much smaller 100% on your screen than with 16 or 24mp. Also the pic was taken at F20 so diffraction has kicked in especially with 25% pixel increase from de the previous model. Plus you are cropping quite a lot, which means atmospheric distortion is also magnified.

    • Sat What?

      I agree, these pics are average. Check out the sharpening in the flower shot. The transitions that should be smooth in the background look chopped up to hell.

      • And another thing!

        Yikes, what the hell is wrong with that tree shot too!

        • Eric Calabros

          ridiculously soft for a medium format lens

          • johnny

            Most medium format lens sucks. Only few of them can match up with the 135 equivalents. The only advantage of digital medium format is the dynamic range. However, when Sony A7s came out, it will beat medium format again.

          • fjfjjj

            @johnny Only a few 135 lenses can match the resolution and contrast of their medium format equivalents. In other words, the exact opposite of what you said.

          • BernhardAS

            looks like the focus is on the nose rather than the eye?

          • Eric Calabros

            EXIF says its f/8

          • TinusVerdino

            you blew it: From an already compressed jpeg (6000*4500) not sharpened by me.

            https://dl.dropboxusercontent.com/u/273076093/13876967223_28e87f58e2_o.JPG

          • Eric Calabros

            so sorry, I opened it again in photoshop, and it was clearly sharper than my first crop.(maybe my mobile photo editor app ruined it)

        • bubbles

          Terrible, soft, flat ugh. The first blossom tree shot is the worst!

          No thanks

          • Mr.Black

            First blossom tree is worst indeed. But the second one looks great. Problem is obviously behind the camera.

    • BP2012

      Could be a wind, because lower parts of the tree and snow looks better. This photo is also optimized for printing (whatever that means).

    • sigh

      You’re just an armchair expert

  • sasa208

    I wonder how the Sigma DP Quattro images wil look compared to the 645Z’s. In this price range (or lower), it wil be Pentax’ only competitor as far as IQ goes. And perhaps in a smaller degree a D800E with Otus or the new Sigma 50mm atached to it.

    • fjfjjj

      Care to explain why the DP Quattro is more of a competitor than the D800E?

      • Eric Calabros

        Imaging Resources said it outresolves D800E, without color moire

        • Say What?

          Out resolves in small sizes, perhaps. Stretch it for large prints though and it will fall apart quicker. Nothing is immune from interpolation, you can’t make pixels from nothing.

          • hexx

            DP2M is pretty much 30mp camera out of the box – that’s the difference. It’s really worth trying it.

          • hexx

            And the DP2 Quattro will be 39mp camera out of the box

          • fjfjjj

            I think the 39Mp claim is kind of weak. It’s a 20Mp sensor with zero demosaicing artifacts. Does that beat a 39Mp Bayer sensor perceptually? It probably would for me, at least some of the time. But megapixels aren’t a perceptual measure, and I think Sigma is abusing the term.

          • sasa208

            The claim of 39 Mp is very fair indeed. To truly understand how the Foveon structure works, and a Bayer structure for that matter, because we al just assume that 36 Mp Bayer really is 36 Mp, I again refer to this excelent article:
            http://www.imaging-resource.com/news/2014/04/08/sigma-qa-part-ii-does-foveons-quattro-sensor-really-outresolve-conventional

          • fjfjjj

            I’ve read that article. I think that the Quattro will produce a lot more perceptual information per RGB pixel than a Bayer sensor. But I’m still not seeing 39Mp as a meaningful metric, or Mp as a good way of comparing Quattro and Bayer sensors. A Quattro raw file just doesn’t map a 39 million point space. It would be good to have a perceptual metric available, and watch the Quattro break every record, but Mp ain’t it. It’s never the less interesting to consider the 36Mp D800 Bayer sensor as providing 18Mp (probably a little more) of luminance information (green channel) while the 39Mp Quattro provides indisputably about 20Mp (amazingly through the “blue” channel which is actually panchromatic but not flat). I expect that to put the Quattro head-to-head with the D800. But the Quattro is 36Mp?… nah.

          • orpickaname

            At least one printmaster seems to have a different opinion to yours: Foveon files do extremely well for enlargements.

            http://diglloyd.com/blog/2013/20130724_5-SigmaDPMerill-printing-really-big.html

          • fjfjjj

            It’s not about pixels, it’s about information. If that wasn’t true, my 16Mp P&S would beat my 12Mp D3. So now, if you read the imaging-resource article, the claim is that Bayer sensors only produce luminance data at 1/2 of the photosites, while the Quattro sensor produces luminance data at all of them. So if by “falling apart” you’re talking about perception of detail (information) then you ought to be interested in luminance information, which might put the Quattro way ahead.

          • say what?

            You just said it was about the pixels. Why are you going back on your word?

      • sasa208

        Sure :)
        To get it straight, I’m talking competitor in terms of IQ, not flexebility ect.
        First: The DP Quattro has a higher resolution than the D800E. Now, before we get into a Foveon/Bayer true resolution kind of discussion, I’d like to refer to this insightful interview where all is made clear for once and for all: http://www.imaging-resource.com/news/2014/04/08/sigma-qa-part-ii-does-foveons-quattro-sensor-really-outresolve-conventional
        Second: The Sigma camera’s have a fixed lens where it is exactly matched to the sensor. This make a big difference. Also the lenses Sigma uses for these camera’s are absolute world class. This is also why I said to a smaller degree the D800E with an Otus or the new Sigma 50mm atached to it, because these are the first lenses that get the best out of it’s 36mpx sensor. With the Merrills and the Quattro’s this match has been made already.
        Third: and perhaps most important, I own both a D800E and a DP 2 Merrill. Looking at a live print of both camera’s at 40 by 26 inch, the Merrill wins hands down.
        The 3d like feel, the colors, the saturation, the sharpness, the microcontrast, the Merrill just has the upperhand.
        Therefore with the Quattro on the horizon, I think it even will widen the gap with the D800E.

        • hexx

          So I’m not going crazy then, the same findings here that DP2M beats D800 at base ISO. It does give you MF quality – very close to my Leaf back – both of them useless when you need anything higher than ISO1600 though :)

          • hexx

            Sorry 400, DP2M is ok @1600 for B&W

          • sexyjon

            Why are you comparing this Sigma DP2 to D800 or this new Pentax medium format cameras? No matther how good the Foevon sensors are they are useless in this camera design from Sigma. Photography is not only about the sensor. A camera sensor is only one of three equally important factors, the others are the lenses and the autofocus accuracy and speed. And there are a few other factors that are important too. But the only claimed advantage of the Foevon sensor is top image quality at base ISO. That the sensor is only good at or near base ISO already makes it a bad sensor for general use. That the Sigma cameras using the new Foevon sensor do not have a very good autofocus system to support the sensor and they only have fixed lenses makes them pretty useless again in all situations for the general or pro photographer.
            I like that Sigma and Foevon are bringing something new to digital photography, even if it is done in a useless way. But it shows that it is still possible to come up with something new. Now Sigma should do with this sensors what they have done so well with dslr lenses, improve it and get it into cameras from other manufacturers. Then we may see a very interesting product. Until then the only buyers of this new Sigma DP2 cameras will be either people who buy them by accident and ignorance or people with special needs that want to try this for a change.

          • hexx

            autofocus has nothing to do with the quality, lens and sensor yes – and that’s where DP series shines. regardless of camera system i use I always try to use as low ISO as possible – don’t see any point in having high resolution high noise captures, it just doesn’t make any sense to me (landscape/portrait/product photography is what i do)

        • Prevedovich

          I have seen test images and made a conclusion that the color accuracy is a big problem for foveon. Every camera type has some sort of strong sides. Full frame is good for portraits only. APS-C are good for landscapes (less diffraction). The best choice for still life is m4/3, does not have as much
          diffraction as full frame and 60/2.8 macro is one of the best optics
          ever made. I would assume you can use foveon for still life, but you need true colors and HQ optics. It seems that Sigma does not have enough money to put the technology to the new level. They could choose still life market share and kick everybody out of the business, but they continue to produce camera that is great in theory, but it is not the best in any particular segment. It is a very weak marketing position. Sorry, but I write what I really think.

  • joakim

    Theses images doesn’t justice to the sensor IMHO, we’re looking at the jpeg engine. Sharpness is lost. Still, the sensor appear to be useable for 1600 iso. Whatever high res bayer sensor I’m looking at, I still don’t find that particular 3d and sharpness found in foveon type sensor. It would be awesome if sony could release such a technology, that could be a game changer.

  • Kynikos

    I don’t get why every company’s sample shots aren’t as good as they can possibly be. (Nikon, for instance, equally guilty.)

  • No-one important

    Please correct me if I am in error but everything indicates that the 645Z is 14-bit.

    Really? It’s 2014. Medium format has been using 16-bit for how long again? If the flash sync speed wasn’t enough of a knock along with no CF storage. I’m sorry but I don’t get it.

    It’s actually less expensive to stitch two D800 images. Competition is good and it’s nice to see someone entering the marketplace rather than leave it but … it falters at all the bits that say pro.

    Sorry but this seems to say doctor-with-money-burning-a-hole-in-his-pocket rather than pro.

    • Arn

      Hassy and Phase one cameras with the SOnu sensor are limited to 14 bit too.
      The sensor is not build for 16bit.

      • Arn

        Sony, not SOnu ….

  • Mike

    Argh. The 1/125 sync speed is a show stopper. Considering the Schneider lenses for P1 allow 1/2000 with their leaf shutter. The work around is to use hot lights in a studio but they don’t get as bright as strobes.

    • Evert

      In a studio (without daylight) it doesn’t matter; it’s where daylight is involved this really becomes an issue

  • Cornholio

    LOL…photos are nice but the comments below from jealous amateurs who likely shoot brick walls & kids.

    • fjfjjj

      You must be quite the professional to have so much energy to demean amateurs.

      • orpickaname

        Or just having one of those professional vacancy moments ;)

    • saywhatuwill

      You forgot the cats.

  • the truth hurts

    so i guess this camera is just to show off the price tag that you have it… rather than results~ XD

    • waterengineer

      Or more correctly, how screwed everyone is when buying a ‘Blad/P1/Leica S camera. ‘Blad/P1/Leica will attempt to hang on to their pricing arguing “research”, “machining” etc. However, if the 645z is a failure, it will still prove how much margin there is in MF cameras. You know Pentax will be making a profit off the camera, so how much does the sensor cost and how much does it actually cost to deliver a MF camera to market? That is what we learned.

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